.change {
  &::before {
    content: '';
    width: 40px;
    height: 40px;
    margin-right: 10px;
    background-size: 100% 100%;
    background-image: url('https://applets-1302975996.cos.ap-nanjing.myqcloud.com/zhb/icon-user-1.svg');
  }
}
